Metamorphic processes of ice sheet based on crystal texture analysis and deformation test of polar deep ice core

为了了解冰盖的变质过程，对人工冰样和冰盖冰芯样品进行了冰晶结构分析和变形试验。特别是对冰晶的a轴取向分布进行了研究。设计并研制了作为标准样品的冰单晶生长装置和可以观察变形过程中晶体取向和结构的薄片样品变形试验装置。因此，以前在深部冰芯样品中发现了a轴取向的各向异性分布，并提出了在有限条件下可能形成的样品。

In order to understand metamorphic processes of ice sheet, ice crystal texture analysis and deformation test of artificial ice samples and ice core samples from ice sheet were carried out. In particular, this research was focused on the a-axis orientation distribution of ice crystals. Ice single crystal growth apparatus as a standard sample and thin section sample deformation test apparatus which can be observed crystal orientation and structure during deformation were also designed and developed. As a result, the anisotropic distribution of a-axes orientation was previously found in deep ice core samples may be formed under limited condition was suggested.